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Appendix B - International Resources / About the International Resources

Script Codes and Resource ID Ranges

Fonts, international resources, and keyboard resources that are related to a particular script system have resource ID numbers in a range specific to that script. The script management system uses this relationship between resource ID and script code to assign the proper resources for displaying and formatting text. For example, the Script Manager FontScript, IntlScript, and FontToScript functions all use a font family ID to determine the script code that they return. Many other Script Manager, Text Utilities, and QuickDraw routines that load and use international resources take an explicit or implicit script code parameter; they will load only resources with ID numbers in the proper range for the supplied script code.

This numbering convention applies to font family IDs, and to the ID numbers of the following international and keyboard resources: 'itl0', 'itl1', 'itl2', 'itl4', 'itl5', 'trsl', 'KCHR', 'itlk', 'kcs#', 'kcs4', and 'kcs8'.

Resources with ID numbers below 16384 ($4000) belong to the Roman script system. Currently, the script management system uses the following formula to calculate the script code for resources with ID numbers of 16384 and over:

scriptCode = ((resourceID - 16384) DIV 512) + 1

The formula allots half of the range of nonnegative ID values to the Roman script system, and 512 ID numbers (for each resource type) to each other script system, as shown in Table B-2. Please note that this formula may change in the future; note also that future script systems may possibly use negative ID values.

Table B-2 Resource ID ranges for each script system (Continued)

Script system	Script code	Resource ID range
		Decimal	Hexadecimal
Roman	0	2-16383	$0000-$3FFF
Japanese	1	16384-16895	$4000-$41FF
Chinese (Traditional)	2	16896-17407	$4200-$43FF
Korean	3	17408-17919	$4400-$45FF
Arabic	4	17920-18431	$4600-$47FF
Hebrew	5	18432-18943	$4800-$4FF9
Greek	6	18944-19455	$4A00-$4BFF
Russian	7	19456-19967	$4C00-$4DFF
Right-left symbols	8	19968-20479	$4E00-$4FFF
Devanagari	9	20480-20991	$5000-$51FF
Gurmukhi	10	20992-21503	$5200-$53FF
Gujarati	11	21504-22015	$5400-$55FF
Oriya	12	22016-22527	$5600-$57FF
Bengali	13	22528-23039	$5800-$5FF9
Tamil	14	23040-23551	$5A00-$5BFF
Telugu	15	23552-24063	$5C00-$5DFF
Kannada	16	24064-24575	$5E00-$5FFF
Malayalam	17	24576-25087	$6000-$61FF
Sinhalese	18	25088-25599	$6200-$63FF
Burmese	19	25600-26111	$6400-$65FF
Cambodian	20	26112-26623	$6600-$67FF
Thai	21	26624-27135	$6800-$6FF9
Laotian	22	27136-27647	$6A00-$6BFF
Georgian	23	27648-28159	$6C00-$6DFF
Armenian	24	28160-28671	$6E00-$6FFF
Chinese (Simplified)	25	28672-29183	$7000-$71FF
Tibetan	26	29184-29695	$7200-$73FF
Mongolian	27	29696-30207	$7400-$75FF
Ethiopian	28	30208-30719	$7600-$77FF
Non-Cyrillic Slavic	29	30720-31231	$7800-$79FF
Vietnamese	30	31232-31743	$7A00-$7BFF
Sindhi	31	31744-32255	$7C00-$7DFF
Uninterpreted symbols	32	32256-32767	$7E00-$7FFF

Starting with a script code, you can back-calculate resource ID ranges as follows:

• Scripts with script codes in the range 1-32 have a range of 512 resource ID numbers, beginning with a number calculated according to this formula:

  firstID = 16384 + 512 * (script code - 1)

• Scripts with script codes in the range 33-64 have a range of 512 resource ID numbers, beginning with a number calculated according to this formula:

  firstID = -32768 + 512 * (script code -33)

Note

Some script codes above 32 are not usable because they correspond to resource ID ranges that are reserved for other purposes. Script codes 33 through 40 are invalid; furthermore, script codes above 48 are currently unavailable and may become invalid.

Constants for all defined script codes are listed in the chapter "Script Manager" in
this book.